Zobrazeno 1 - 10
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pro vyhledávání: '"Mallick, Ritam"'
Autor:
Saha, Asim kumar, Mallick, Ritam
Causality is an essential factor in determining the maximum mass of a neutron star. Previous works study causality for smooth equations of state. The density at the core of neutron stars can be a few times nuclear saturation density, where the occurr
Externí odkaz:
http://arxiv.org/abs/2410.21877
The recent mass ($0.77 \pm ^{0.20}_{0.17}M_{\odot}$) and radius ($10.4\pm^{0.86}_{0.78} \text{km}$) measurement of HESS J1731-347 made it one of the most fascinating object if it is indeed a neutron star. In this work, we examine the current status o
Externí odkaz:
http://arxiv.org/abs/2410.20355
Proto-neutron stars have both high-density and relatively high-temperature in them. This study analyses how the equation of state changes with temperature, which is relevant for proto-neutron stars. We determine an equation of state for the proto-neu
Externí odkaz:
http://arxiv.org/abs/2409.01785
Autor:
Saha, Asim Kumar, Mallick, Ritam
Simultaneous measurement of mass and radius with high precision is essential to unravel the equation of state of matter at the centre of neutron stars. Measurement of massive pulsars indicates that the equation of state has to be stiff at low densiti
Externí odkaz:
http://arxiv.org/abs/2407.13149
Quasi-normal modes of NSs are an exciting prospect for analyzing the internal composition of NSs and studying matter at high densities. In this work, we focus on studying the $f$- and $p$- quadrupolar oscillation modes, which couple with gravitationa
Externí odkaz:
http://arxiv.org/abs/2407.12601
Recycled millisecond pulsars are susceptible to starquakes as they are continuously accreting matter from their binary companion. A starquake happens when the rotational frequency of the star crosses its breaking frequency. In this study, we perform
Externí odkaz:
http://arxiv.org/abs/2404.03675
The concept of quarkyonic matter presents a promising alternative to the conventional models used to describe high-density matter and provides a more nuanced and detailed understanding of the properties of matter under extreme conditions that exist i
Externí odkaz:
http://arxiv.org/abs/2304.08223
In this work we have analyzed the variation of speed of sound and trace anomaly inside a neutron star using neural network. We construct family of agnostic equation of state by maintaining thermodynamic stability, speed of sound bound with constraint
Externí odkaz:
http://arxiv.org/abs/2302.13648
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 524, Issue 1, September 2023, Pages 1438 1447
Universal relations are important in testing many theories of physics. In the case of general relativity, we have the celebrated no-hair theorem for black holes. Unfortunately, the other compact stars, like neutron stars and white dwarfs, do not have
Externí odkaz:
http://arxiv.org/abs/2302.05088
Autor:
Mallick, Ritam
The fundamental constituent of matter at high temperature and density has intrigued physicists for quite some time. Recent results from heavy-ion colliders have enriched the Quantum Chromodynamics phase diagram at high temperatures and low baryon den
Externí odkaz:
http://arxiv.org/abs/2212.00462